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11. Work and Energy
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Q3 of 33 Page 149

Define 1 J of work.

1 Joule is the amount of work done by a force of 1N on an object that displaces it through a distance of 1m in the direction of the applied force.


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1

When do we say that work is done?

2

Write an expression for the work done when a force is acting on an object in the direction of its displacement?

4

A pair of bullocks exerts a force of 140 N in a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field?

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What is the kinetic energy of an object?

Questions · 33
11. Work and Energy
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